1947 ABC radio musical documentary, which features Jiminy Cricket, Donald Duck, and the 7 Dwarfs.
This musical documentary was based upon the "America's Needs and Resources" white paper by the Twentieth Century Fund liberal think tank. (!)
(We'll do less work and be more prosperous in 1960 thanks to our natural resources and improved labor relations.)
There's more about this documentary here: https://netfiles.uiuc.edu/mehrlich/www/utopia.htm